2. Decolonization: The process of European colonies gaining independence, which led to the creation of many new nation-states in Africa, Asia, and the Middle East.
3. The Korean War: A conflict between North and South Korea that lasted from 1950 to 1953 and ended in a stalemate.
4. The Vietnam War: A conflict between North and South Vietnam that lasted from 1955 to 1975 and ended with the victory of the North.
5. The Cuban Missile Crisis: A 13-day confrontation in October 1962 between the United States and the Soviet Union over the Soviet Union's placement of nuclear missiles in Cuba.
6. The Space Race: A competition between the United States and the Soviet Union to be the first country to send humans into space and land on the moon.